/*
    * Licensed to the Apache Software Foundation (ASF) under one or more
    * contributor license agreements.  See the NOTICE file distributed with
    * this work for additional information regarding copyright ownership.
    * The ASF licenses this file to You under the Apache License, Version 2.0
    * (the "License"); you may not use this file except in compliance with
    * the License.  You may obtain a copy of the License at
    *
    *      http://www.apache.org/licenses/LICENSE-2.0
   *
   *  Unless required by applicable law or agreed to in writing, software
   *  distributed under the License is distributed on an "AS IS" BASIS,
   *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   *  See the License for the specific language governing permissions and
   *  limitations under the License.
   */
  package org.apache.bcel.classfile;
  
  import java.io.DataOutputStream;
  import java.io.IOException;
  
  /**
   * An annotation's element value pair.
   *
   * @since 6.0
   */
  public class ElementValuePair {
  
      static final ElementValuePair[] EMPTY_ARRAY = {};
  
      private final ElementValue elementValue;
  
      private final ConstantPool constantPool;
  
      private final int elementNameIndex;
  
      public ElementValuePair(final int elementNameIndex, final ElementValue elementValue, final ConstantPool constantPool) {
          this.elementValue = elementValue;
          this.elementNameIndex = elementNameIndex;
          this.constantPool = constantPool;
      }
  
      protected void dump(final DataOutputStream dos) throws IOException {
          dos.writeShort(elementNameIndex); // u2 name of the element
          elementValue.dump(dos);
      }
  
      public int getNameIndex() {
          return elementNameIndex;
      }
  
      public String getNameString() {
          return constantPool.getConstantUtf8(elementNameIndex).getBytes();
      }
  
      public final ElementValue getValue() {
          return elementValue;
      }
  
      public String toShortString() {
          final StringBuilder result = new StringBuilder();
          result.append(getNameString()).append("=").append(getValue().toShortString());
          return result.toString();
      }
  }